| 摘要 |
<p>Angled griding machine (10) comprising a motor, gearing and a hollow transmission shaft (13) driven by the latter, a through-spindle (22) being housed in said shaft. At the end of the latter (13) is located a mating flange (18). The spindle (22) has a threaded reduced section (24) on which is screwed a clamping nut (19) for securing the grinding disk (17) to the mating flange (18). The spindle (22) can be moved with the clamping nut (19) axially in relation to the transmission shaft (13). The latter and the spindle (22) are traversed by a transversely movable key (29) provided with a lower sloping surface (28) and co-operating with corresponding sloping surfaces (30 and 34) in each. The angle of slope is located in the automatic locking region. The key (29) is upwardly spring-biased and can be moved downward by means of a securing bolt (38) for locking the spindle, in order to effect axial release from the outside by axial displacement and release of the spindle (22) by means of the nut (19). In this way rapid and safer abrasive disk changing is made possible without the use of tools.</p> |
